#pragma once
#include <cmath>

class Constants
{
public:
	double  gammaAir = 1.4;
	double  Rgas_mol = 8.3145;// J / mol / K
	double  Cp_dryAir = 1003.8;// J / kg / K
	double  k_air = 0.024;// W / m / K
	double  mu_air = 1.8e-5;// kgm / s3
	double  Pr = (mu_air * Cp_dryAir) / k_air;
	double  recov = pow(Pr, 1.0 / 3.0);// recovery factor
	double  molarMass_air = 28.93;// kg / kmol
	double  D0 = 22.6e-6;// m2 / s
	double  g = 9.81; //m/s2
};

